CNC - Implementation Guidance Documents

Implementation Guidance Documents

Below you will find the latest published implementation guidance documents for the connection network codes.

1. Compliance Verification - Monitoring after operational notification (updated 2023)
2. Compliance Verification - Simulation models (updated 2023)
3. Automatic connection/reconnection and admissible active power ramp in (updated 2021)
4. Compliance Verification – Compliance Testing and use of Equipment Certificates (updated 2021)
5. Cost-benefit analysis
6. Demand Response – System Frequency Control (updated 2021)
7. Embedded HVDC systems – frequency schemes in case of system split
8. Fault current contribution from PPMs & HVDC converters
9. Frequency Ranges (updated 2021)
10. Frequency Sensitive Mode
11. HVDC systems default parameters
12. Harmonisation
13. High Penetration of Power Electronic Interfaced Power Sources (HPoPEIPS)
14. Instrumentation, simulation models and protection
15. Interactions between HVDC systems and other connections
16. Limited Frequency Sensitive Mode
17. Making non-mandatory requirements at European level mandatory in a country
18. Maximum Admissible active power reduction at low frequencies (updated 2021)
19. Need for synthetic inertia for frequency regulation
20. Parameters of non-exhaustive requirements (updated 2021)
21. Parameters related to frequency stability
22. Post fault active power recovery
23. Rate-of-change-of-frequency withstand capability (RoCoF)
24. Reactive power control modes
25. Reactive power management at transmission/distribution interface
26. Reactive power requirement for PPMs & HVDC converters at low / zero active power
27. Real time data and communication
28. Selection of national parameters for RfG type classification
29. Special issues for Type A generators
30. Voltage related parameters for non-exhaustive requirements

Archives (old versions of IGDs)

1. Automatic connection/reconnection and admissible active power ramp in (version 2018)
2. Compliance monitoring (version 2017)
3. Demand Response – System Frequency Control (version 2018)
4. Frequency Ranges (version 2018)
5. Maximum Admissible active power reduction at low frequencies (version 2018)
6. Parameters of non-exhaustive requirements (version 2016)

Relevant replies to the public consultations

The Consultation period: 16/01/23- 16/02/23

The Consultation period: 02/12/20 - 31/01/21